Please donate to SJ23 Annual Campaign

 Gifts of any size are greatly appreciated. Thank you!

Our Mission
We prepare the hearts and minds of our students to serve God and others.


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  • Valedictorian & Salutatorians

    St. John XXIII is proud to announce the class of 2019 valedictorian, Caitlyn Louise Cano and salutatorians, 
    Abby Faye Hollman and Adley Grace Marsh.

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  • Uniform SALE!

    Mills Uniform 2019 Summer Sale starts on June 8. 
    10% Off everything / 25%+ and More Off Clearance items and $5 shipping on orders $100+ placed during the sale.

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  • All Student Physicals

    All Students MUST get a physical for the 2019-20 school year. Houston Methodist Orthopedics & Sports Medicine will be hosting Physicals on campus May 29th from 12:30 - 3:30 PM

Calendar Events

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